President Obama and former President Bill Clinton have announced an $4-billion federal-private sector-local government program to upgrade a wide range of existing buildings to make them more energy efficient. ----- Advertising ----- Related links Biggest Losers Unveiled in Battle of Energy Star Buildings Digging for Dollars: Government Incentives The plan expands an earlier green-building effort by the Clinton Global Initiative. But in a bow to political realities, the program doesn't involve any new federal spending or tax breaks. In announcing the plan at a Washington, D.C., renovation project, Obama called energy-efficiency improvements to buildings “a trifecta.” He said it “is one of the fastest, easiest and cheapest ways for us to create jobs, save money and cut down on harmful pollution.” He also said such steps such as cutting buildings' energy consumption could sav...